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$403+ Cheap flights from Porto (OPO) to Las Vegas (LAS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — LAS
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Porto to Las Vegas

Discover tips and strategies to find the most affordable flight options for your journey from Porto (OPO) to Las Vegas (LAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 12, 2025.

Round-trip from

$681
(SmartFares)

One-way from

$403
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$897
From Porto to Las Vegas Harry Reid Intl
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One-way flight from Porto to Las Vegas Harry Reid Intl
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Highest demand for flights based on searches. 9% potential increase in price ($94 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Porto to Las Vegas

Cheapest flights from Porto to Las Vegas
Explore the most affordable flight options available from Porto to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This SmartFares deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/18:50 amOPO - LAS
1 stop19h 38mAir Transat
Thu 11/1310:35 pmLAS - OPO
1 stop24h 30mAir Transat
Deal found 6/11$681
This Kiwi.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/231:30 pmOPO - LAS
1 stop27h 20mMultiple Airlines
Wed 7/99:37 pmLAS - OPO
2 stops51h 13mMultiple Airlines
Deal found 6/10$732
This Iberia deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/238:15 amOPO - LAS
2 stops19h 45mIberia
Wed 7/912:41 pmLAS - OPO
2 stops19h 14mIberia
Deal found 6/11$768
This British Airways deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/38:40 pmOPO - LAS
2 stops30h 10mBritish Airways
Fri 11/147:05 amLAS - OPO
2 stops28h 10mBritish Airways
Deal found 6/11$787
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3112:30 pmOPO - LAS
2 stops28h 09mUnited Airlines
Fri 11/1411:35 amLAS - OPO
1 stop13h 55mUnited Airlines
Deal found 6/11$845
This Lufthansa deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/306:00 amOPO - LAS
1 stop16h 35mLufthansa
Thu 11/137:15 amLAS - OPO
2 stops23h 30mLufthansa
Deal found 6/11$846
This Air Canada deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/306:00 amOPO - LAS
2 stops23h 22mAir Canada
Wed 11/1212:00 pmLAS - OPO
2 stops39h 50mAir Canada
Deal found 6/11$848
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/265:00 amOPO - LAS
2 stops24h 53mDelta
Sat 1/311:55 pmLAS - OPO
2 stops31h 30mDelta
Deal found 6/10$913
This KLM deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/276:55 pmOPO - LAS
1 stop31h 40mKLM
Sun 8/38:25 pmLAS - OPO
1 stop17h 50mKLM
Deal found 6/12$1,004
This American Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/268:40 pmOPO - LAS
2 stops30h 10mAmerican Airlines
Fri 1/21:38 amLAS - OPO
2 stops22h 02mAmerican Airlines
Deal found 6/10$1,026
This SWISS deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/22:50 amOPO - LAS
2 stops21h 30mSWISS
Sat 8/97:05 pmLAS - OPO
1 stop32h 55mSWISS
Deal found 6/11$1,576
This TAP AIR PORTUGAL deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/316:35 pmOPO - LAS
1 stop34h 45mTAP AIR PORTUGAL
Sun 11/1610:00 amLAS - OPO
1 stop17h 50mTAP AIR PORTUGAL
Deal found 6/11$3,010

Cheapflights Fare Finder

Customize your flight search to find flights from Porto to Las Vegas that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from Porto to Las Vegas that are best for you.

Fly from

Porto

Fly to

Las Vegas

Route

Depart

Return

Price

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Sat 11/1

8:50 am-9:28 pm

1 stop19h 38m

Las Vegas Harry Reid Intl

Thu 11/13

10:35 pm-7:05 am

1 stop24h 30m

$681

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 6/23

1:30 pm-8:50 am

1 stop27h 20m

Las Vegas Harry Reid Intl

Wed 7/9

9:37 pm-8:50 am

2 stops51h 13m

$732

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 6/23

8:15 am-8:00 pm

2 stops19h 45m

Las Vegas Harry Reid Intl

Wed 7/9

12:41 pm-3:55 pm

2 stops19h 14m

$768

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 11/3

8:40 pm-6:50 pm

2 stops30h 10m

Las Vegas Harry Reid Intl

Fri 11/14

7:05 am-7:15 pm

2 stops28h 10m

$787

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Fri 10/31

12:30 pm-9:39 am

2 stops28h 09m

Las Vegas Harry Reid Intl

Fri 11/14

11:35 am-9:30 am

1 stop13h 55m

$845

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 10/30

6:00 am-3:35 pm

1 stop16h 35m

Las Vegas Harry Reid Intl

Thu 11/13

7:15 am-2:45 pm

2 stops23h 30m

$846

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 10/30

6:00 am-10:22 pm

2 stops23h 22m

Las Vegas Harry Reid Intl

Wed 11/12

12:00 pm-11:50 am

2 stops39h 50m

$848

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 6/23

6:30 am-6:35 pm

1 stop20h 05m

Las Vegas Harry Reid Intl

Wed 7/9

6:45 am-8:25 am

2 stops17h 40m

$960

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Sun 7/27

6:55 pm-6:35 pm

1 stop31h 40m

Las Vegas Harry Reid Intl

Sun 8/3

8:25 pm-10:15 pm

1 stop17h 50m

$1,004

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Sat 8/2

2:50 am-4:20 pm

2 stops21h 30m

Las Vegas Harry Reid Intl

Sat 8/9

7:05 pm-12:00 pm

1 stop32h 55m

$1,576

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 16 results
1
2

Best time to book a flight from Porto to Las Vegas

Have a flexible travel schedule? Discover the best time to fly to Las Vegas from Porto with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Porto to Las Vegas

What is the cheapest month to book a flight from Porto to Las Vegas?

Currently, August is the cheapest month in which you can book a flight from Porto to Las Vegas (average of $198). Flying from Porto to Las Vegas in March is currently the most expensive (average of $269). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Rainfall in Las Vegas by month

Plan your trip to Las Vegas by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Las Vegas ranges from 0.1 - 0.8 inches per month. February is typically the wettest month, when rainfall can reach 0.8 in. May is typically the driest time to visit Las Vegas when rainfall is around 0.1 in.

Temperature in Las Vegas by month

Plan your trip to Las Vegas by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Las Vegas, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 93.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

Reviews of airlines servicing Las Vegas

Get insights into the airlines that provide service to Las Vegas. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Las Vegas. Reviews last updated June 12, 2025.
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air Transat
7.8
Good
396 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
SWISS
7.5
Good
1,623 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Porto to Las Vegas. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Porto to Las Vegas round-trip?

    Cheapflights users have booked flights from Porto to Las Vegas round-trip from $681. Other airlines that can offer you cheap pricing are Iberia, from $768, and British Airways, from $787. Air Transat is 26% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Porto to Las Vegas one-way?

    $659 is the cheapest one-way deal found within the past few days, from TAP AIR PORTUGAL. You may also be able to find cheap deals on Lufthansa and Iberia, with prices starting from $947 and $979, respectively.

  • Can I find deals for flights from Porto to Las Vegas that include hotel bookings?

    Yes. In addition to deals on Porto to Las Vegas flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Porto to Las Vegas?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Porto to Las Vegas.

  • Can I find deals for business class flights from Porto to Las Vegas?

    Yes. Cheapflights offers flight deals from Porto to Las Vegas by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Porto to Las Vegas?

    Currently, August is the cheapest month in which you can book a flight from Porto to Las Vegas (average of $198). Flying from Porto to Las Vegas in March is currently the most expensive (average of $269). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Henderson
Paradise
North Las Vegas
Sunrise Manor
Winchester
Primm
Mount Charleston
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Mesquite
Needles
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